Energizer Ultimate Lithium AA Batteries (2 Pack), 1.5V Lithium Double A Batteries

Energizer Ultimate Lithium AA Batteries (2 Pack), 1.5V Lithium Double A Batteries

Q: What is the capacity of the 1.5v batteries in mAh?

Thank you for reaching out to Energizer.The capacity of the 1.5v is 3000 mAh. For any further information you can reach out to us at energizer@custhelp.com or can call us at 800-383-7323.

Q: Anyone know if there is a difference between the "advanced" lithium and the "ultimate" lithium?? Other than price.

I thought it would be marketing as well. So I looked in a leading consumer review Magazine and there is apparently a difference. They rated the "ultimate" A few points higher than the "advanced" and for the two tests that they use, one a flashlight test and the other a toy test, the "ultimate" received "excellent" on both tests, while the "advanced" Received "excellent" on the flashlight test and a "good" on the toy test. So I assume the lithium ultimate version lasted longer on the run down test for the toy, which is going to draw energy more inconsistently than a flashlight. If I find a product is burning through batteries faster than expected, I will usually try lithiums. More often than not, the improvement in run time is substantial

Q: Are these “energizer e91” batteries? my co detector requires that type (won’t work with generic aas). where on packages does it indicate e91?

E91 refers to Eveready Alkaline batteries¹ (open circuit about 1.5 VDC). L91 refers to Eveready Lithium batteries² (open circuit about 1.8 VDC). The physical casing is the same size. The CO detector may present such a low battery load that it does not like the slightly higher voltage that the L91 battery exhibits when not under a typical load. Contact your CO detector manufacturer and get their opinion on which battery to use (Alkaline or Lithium). I've used both in a number of applications and they've both worked well (although the Alkalines leak while the Lithium never have [for me at least]). _________________________________ ¹ https://www.amazon.com/s?k=E91+battery ² https://www.amazon.com/s?k=L91+battery

Q: What is the voltage of these batteries? they don't work in my handheld mic. non-lithium aa energizer batteries do work in the mic.

The open circuit voltage (i.e., just the battery alone) of Eveready's Ultimate Lithium batteries is roughly 1.8 VDC. Under a reasonable load this drops to roughly 1.5 VDC (as Reilly pointed out). This is normal. It is possible in your application -- a very low load on the batteries -- it is possible that the higher voltage is affecting your electrical circuit somehow. I've never run into this but it is possible. Physically they use the same physical case (50mm long, 14mm diameter). But I have seen some designs where the designer got cute and tried to mask off the + battery terminal using barriers to protect from reverse polarity. The result is sometimes the + battery terminal doesn't make contact with the + device terminal. If you're really intent on using the Lithium batteries, I'd recommend checking out those two scenarios. Good luck. And feel free to come back and leave "an answer" if you come up with a solution to use the Lithiums.

4.6/5

Product ID: 3225917

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Details

Number of Batteries
2 AA batteries
Brand
Energizer
Battery Cell Composition
Lithium
Battery Capacity
3500 Milliamp
Recommended Uses For Product
Household Use

⚡Longest-lasting AA power

🛡️Leak-proof, corrosion-resistant design

❄️🔥Extreme temp performance -40°F to 140°F

Frequently Bought Together

Energizer AA Lithium Batteries, World's Longest Lasting Double A Battery, Ultimate Lithium (2 Battery Count) - Packaging May Vary

Elevation Lab AirTag 10-Year Extended Battery Case - Uses AA Batteries - 14x More Capacity Than CR2032 TimeCapsule | Waterproof, CR 2032 Battery Replacement

Energizer Ultimate Lithium AA Batteries (4 Pack), 1.5V Lithium Double A Batteries

Description

⚡ Power that outlasts time and temperature — never get caught powerless again!

ECO CONSCIOUS POWER - Incorporates recycled steel materials, blending high performance with sustainability.
LIGHTWEIGHT READY - Ultra-light batteries that store power for up to 25 years, always ready when you need them.
UNMATCHED LONGEVITY - World’s longest-lasting AA batteries keep your devices powered longer, reducing replacements and waste.
LEAK PROOF ASSURANCE - Engineered to prevent leaks and corrosion, safeguarding your valuable electronics.
ALL SEASON RELIABILITY - Operates flawlessly from -40°F to 140°F, perfect for every climate and adventure.

Energizer Ultimate Lithium AA Batteries deliver the longest-lasting power in the AA category, performing reliably in extreme temperatures from -40°F to 140°F. Their leak-proof design protects your devices from corrosion, while their lightweight build and 25-year shelf life ensure they’re ready whenever you need them. Made with up to 10% recycled steel, these batteries combine cutting-edge performance with eco-conscious materials.

Have a Question? See What Others Asked

What is the capacity of the 1.5v batteries in mAh?

Anyone know if there is a difference between the "advanced" lithium and the "ultimate" lithium?? Other than price.

Are these “energizer e91” batteries? my co detector requires that type (won’t work with generic aas). where on packages does it indicate e91?

What is the voltage of these batteries? they don't work in my handheld mic. non-lithium aa energizer batteries do work in the mic.

Reviews

4.6

All from verified purchases

C**N

Energizer Lithium batteries for outdoor motion detectior

My outdoor motion camera required these Energizer Lithium Batteries. The battery life is incredible and so much longer lasting than the standard battery. I would highly recommend them for any item that runs of batteries. It will save you money in the long run and last much longer than your standard battery.

8.04.2025

O**O

Blink camera

Seems to be working well for Blink camera and lasting longer than other batteries!

19.02.2025

R**K

Long lasting!

Love these. long lasting for my blink outdoor camera.

27.06.2025

B**X

Great for blink

Definitely worth it. I have the blink doorbell and these batteries are the only ones that don’t need changed once a week.

14.07.2025

M**

Great long lasting power

Best lithium batteries I've ever used. They are very, overly pricey. If you use them on your toys that "buzz" you will definitely get longer playtime and may notice a definite increase of power. Flashlight stays brighter longer. Maybe brighter in general compared to regular AAs. It may be in my head though, I'm pretty biasTheir appearance makes them easy to identify when mixed in with other batteries because of the solid silver with blue.I believe they're slightly bigger than most AAs, but should fit in almost any AA battery compartment.

26.07.2025

P**L

Very Good Lithium Batteries

The lithium batteries work very well as expected from Energizer.

30.06.2025

M**T

Well they work and last longer than non lithium ion.

Why did you pick this product vs others?:Well they're batteries... So yeah they work. Definitely last longer than non lithium ion.

26.06.2025

L**H

Juice doesn’t last

I bought these for my doorbell camera and the batteries don’t last all that long.

28.10.2024

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